Welcome to Our Practice Gentle Dentistry... Beautiful Smiles! Your smile is one of the first things people notice. If you want to have a gorgeous smile and enjoy a lifetime of exquisite dental health, visit Yorktown Dental, the office of Dr. Zachary Duman. Our team strives to give you the highest quality, most comfortable dental care in a relaxing, state-of-the-art environment. With the goal of obtaining for our patients a healthy smile that lasts a lifetime, our team likewise strives to provide the very best dentistry while making our patients as comfortable as possible.